Caged Bluefin Tuna

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Caged Bluefin Tuna

Photograph by Brian Skerry

These caged bluefin tuna (Thunnus thynnus) swim in Spanish waters. They’ll be fattened for the sushi market, where their buttery meat fetches high prices. The bluefin has proved to be no match for a high-tech fishing industry, which has sent their numbers into a precipitous decline.